82 messages in org.freebsd.freebsd-hackersProtection from the dreaded "rm -fr /"| From | Sent On | Attachments |
|---|---|---|
| Giorgos Keramidas | Oct 2, 2004 1:19 am | |
| Edwin Groothuis | Oct 2, 2004 1:33 am | |
| Michael Reifenberger | Oct 2, 2004 1:34 am | |
| Giorgos Keramidas | Oct 2, 2004 1:39 am | |
| Giorgos Keramidas | Oct 2, 2004 1:51 am | |
| Ryan Sommers | Oct 2, 2004 1:52 am | |
| Giorgos Keramidas | Oct 2, 2004 1:53 am | |
| Giorgos Keramidas | Oct 2, 2004 2:06 am | |
| Max Laier | Oct 2, 2004 2:24 am | |
| Giorgos Keramidas | Oct 2, 2004 3:19 am | |
| Greg Black | Oct 2, 2004 3:57 am | |
| Ceri Davies | Oct 2, 2004 4:22 am | |
| Ceri Davies | Oct 2, 2004 4:25 am | |
| Max Laier | Oct 2, 2004 4:51 am | |
| Peter Jeremy | Oct 2, 2004 5:43 am | |
| Dimitry Andric | Oct 2, 2004 7:48 am | |
| Simon L. Nielsen | Oct 2, 2004 8:03 am | |
| Sean Farley | Oct 2, 2004 8:41 am | |
| Sam | Oct 2, 2004 8:54 am | |
| Jacques A. Vidrine | Oct 2, 2004 9:46 am | |
| Tillman Hodgson | Oct 2, 2004 9:51 am | |
| Lee Harr | Oct 2, 2004 9:53 am | |
| Tillman Hodgson | Oct 2, 2004 9:55 am | |
| Giorgos Keramidas | Oct 2, 2004 10:10 am | |
| Giorgos Keramidas | Oct 2, 2004 10:55 am | |
| Giorgos Keramidas | Oct 2, 2004 10:56 am | |
| Tillman Hodgson | Oct 2, 2004 11:09 am | |
| Doug Russell | Oct 2, 2004 11:37 am | |
| David Schultz | Oct 2, 2004 11:50 am | |
| David Schultz | Oct 2, 2004 12:01 pm | |
| Michael Reifenberger | Oct 2, 2004 12:16 pm | |
| Doug Russell | Oct 2, 2004 12:18 pm | |
| Michael Reifenberger | Oct 2, 2004 12:26 pm | |
| Dmitry Frolov | Oct 2, 2004 12:37 pm | |
| Doug Russell | Oct 2, 2004 12:48 pm | |
| David Schultz | Oct 2, 2004 1:11 pm | |
| Michael Reifenberger | Oct 2, 2004 1:49 pm | |
| Tillman Hodgson | Oct 2, 2004 2:05 pm | |
| Garance A Drosihn | Oct 2, 2004 2:22 pm | |
| Ceri Davies | Oct 2, 2004 3:00 pm | |
| sor...@cydem.org | Oct 2, 2004 3:11 pm | |
| Giorgos Keramidas | Oct 2, 2004 4:28 pm | |
| Giorgos Keramidas | Oct 2, 2004 4:28 pm | |
| David Schultz | Oct 2, 2004 5:19 pm | |
| M. Warner Losh | Oct 2, 2004 6:26 pm | |
| M. Warner Losh | Oct 2, 2004 6:28 pm | |
| M. Warner Losh | Oct 2, 2004 6:29 pm | |
| Giorgos Keramidas | Oct 2, 2004 6:53 pm | |
| Thomas David Rivers | Oct 2, 2004 6:53 pm | |
| M. Warner Losh | Oct 2, 2004 7:07 pm | |
| Doug Russell | Oct 2, 2004 7:11 pm | |
| Tillman Hodgson | Oct 2, 2004 8:09 pm | |
| Tillman Hodgson | Oct 2, 2004 8:11 pm | |
| David Schultz | Oct 2, 2004 11:31 pm | |
| Sam Lawrance | Oct 3, 2004 12:35 am | |
| Chris Howells | Oct 3, 2004 5:07 am | |
| Mike Meyer | Oct 3, 2004 5:07 am | |
| Mike Meyer | Oct 3, 2004 5:07 am | |
| M. Warner Losh | Oct 3, 2004 10:37 am | |
| Greg Shenaut | Oct 3, 2004 11:14 am | |
| Dmitry Morozovsky | Oct 3, 2004 11:28 am | |
| Thomas Sparrevohn | Oct 3, 2004 11:40 am | |
| Dag-Erling Smørgrav | Oct 3, 2004 1:33 pm | |
| Roman Neuhauser | Oct 3, 2004 2:59 pm | |
| M. Warner Losh | Oct 3, 2004 6:38 pm | |
| Mark Murray | Oct 4, 2004 1:10 am | |
| Dmitry Karasik | Oct 4, 2004 3:15 am | |
| Dave Horsfall | Oct 4, 2004 3:27 am | |
| Giorgos Keramidas | Oct 4, 2004 3:49 am | |
| Stijn Hoop | Oct 4, 2004 4:52 am | |
| Ceri Davies | Oct 4, 2004 5:33 am | |
| Søren Schmidt | Oct 4, 2004 5:43 am | |
| Chris Howells | Oct 4, 2004 6:16 pm | |
| Chris Dillon | Oct 5, 2004 8:36 am | |
| Sam | Oct 5, 2004 9:03 am | |
| Giorgos Keramidas | Oct 5, 2004 5:12 pm | |
| Giorgos Keramidas | Oct 5, 2004 5:42 pm | |
| Matthew Dillon | Oct 5, 2004 6:30 pm | |
| Matthew Dillon | Oct 5, 2004 6:56 pm | |
| Matthew Dillon | Oct 5, 2004 11:39 pm | |
| Thomas Sparrevohn | Oct 6, 2004 12:49 pm | |
| Lyndon Nerenberg | Oct 28, 2004 5:31 am |
| Subject: | Protection from the dreaded "rm -fr /" | |
|---|---|---|
| From: | David Schultz (da...@FreeBSD.ORG) | |
| Date: | Oct 2, 2004 12:01:54 pm | |
| List: | org.freebsd.freebsd-hackers | |
On Sat, Oct 02, 2004, Jacques A. Vidrine wrote:
FWIW, I'm not in favor of adding ad-hoc "features" to handle edge-cases. ("feature" because this is actually introducing a bug :-)
I picked this email to which to respond, because I can share my own stupidity. Case much like the one described above, but my cronjob included something like:
cd /path/to/directory/with/temporary/files rm -fr *
Only another admin removed `/path/to/directory/with/temporary/files'... so the `cd' failed and left the current directory as `/'. For some reason the system crashed :-) ... and then crashed again a few days after restoring from backup... doh!
Will the next step be to prevent `rm -fr *' iff the current working directory is '/' ? Please explain your answer. :-)
Hmm...good point. Since we can never hope to cover *all* the ways for people to shoot themselves in the foot, let's just take off the existing seatbelts. If people try to load old kernel modules, the system will just crash. If they try to mount a device twice, it'll corrupt the filesystem. And of course there's no need to validate buffers passed to the kernel from root, much less even check their length.